You develop and extend scalable backend services and RESTful APIs for our etaONE platform (using Spring Boot, Java/Kotlin)
In an agile Kanban team, you work on designing new features and actively help shape our backend architecture
You translate business requirements into clean technical solutions and contribute your own ideas
You ensure code quality through automated tests, code reviews, and clean-code principles and continuously develop your technical skills

Degree in a STEM field (Computer Science or similar) or equivalent qualification
Some practical experience in software development (e.g., internships, student positions, or personal GitHub projects) and good knowledge of Java or Kotlin
Solid experience with REST APIs, relational databases (e.g., PostgreSQL), and Git
Ideally, initial experience with the Spring framework
Analytical thinking, team spirit, a strong willingness to learn, and a passion for clean code
Excellent German and good English skills

Meaningful work: Help industrial companies become more efficient and more sustainable
Flexibility: Hybrid working with the option to work from home (two days per week) and flexible working hours
Team spirit: A supportive, collegial environment with plenty of room for exchange and collaboration
Community: Regular team events and group activities
Work–life balance: 30 vacation days and a flexible, agile working culture
Health: Subsidy for a local gym and the option of a company bike

Junior Backend Software Developer – Java, Kotlin, Spring Boot

Key skills